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Re: Doing both regex match and assignment within a If loop?

From Alain Ketterlin <alain@dpt-info.u-strasbg.fr>
Newsgroups comp.lang.python
Subject Re: Doing both regex match and assignment within a If loop?
Date 2013-03-29 11:06 +0100
Organization Universites Paris VI/Paris VII - France
Message-ID <87txnuv7tl.fsf@dpt-info.u-strasbg.fr> (permalink)
References <f8598e49-67af-4a97-98db-9fd69d0182ae@googlegroups.com>

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Victor Hooi <victorhooi@gmail.com> writes:

>     expression1 = re.compile(r'....')
>     expression2 = re.compile(r'....')
[...]

Just a quick remark: regular expressions are pretty powerful at
representing alternatives. You could just stick everything inside a
single re, as in '...|...'

Then use the returned match to check which alternative was recognized
(make sure you have at least one group in each alternative).

> Is it possible to somehow test for a match, as well as do assignment
> of the re match object to a variable?

Yes, use '...(...)...' and MatchObject.group(). See the other messages.

-- Alain.

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Thread

Doing both regex match and assignment within a If loop? Victor Hooi <victorhooi@gmail.com> - 2013-03-28 21:00 -0700
  Re: Doing both regex match and assignment within a If loop? Chris Rebert <clp2@rebertia.com> - 2013-03-28 21:29 -0700
  Re: Doing both regex match and assignment within a If loop? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-03-29 06:45 +0000
  Re: Doing both regex match and assignment within a If loop? Peter Otten <__peter__@web.de> - 2013-03-29 09:27 +0100
  Re: Doing both regex match and assignment within a If loop? Alain Ketterlin <alain@dpt-info.u-strasbg.fr> - 2013-03-29 11:06 +0100
    Re: Doing both regex match and assignment within a If loop? Arnaud Delobelle <arnodel@gmail.com> - 2013-03-29 10:41 +0000
    Re: Doing both regex match and assignment within a If loop? Neil Cerutti <neilc@norwich.edu> - 2013-03-29 12:51 +0000
  Re: Doing both regex match and assignment within a If loop? Mitya Sirenef <msirenef@lightbird.net> - 2013-03-29 09:49 -0400

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